Electronics Forum | Fri Dec 16 10:51:08 EST 2005 | chunks
OK, this is what I'm talking about. If static is building up between the skin and clothing, how will wrapping it in a smock prevent it? The static is still there, the same charge, except know has a smock is covering it. Unless the smock is grounde
Electronics Forum | Tue Dec 20 16:56:53 EST 2005 | rsmith
I manufacture ESD supplies such as smocks and conduct ESD audits from time to time. With that said, here is my deal on smocks...ESD smocks work well to shield harmful static charges on clothing such as wool, silk, and synthetic fabrics. It is like we
Electronics Forum | Tue Jan 03 17:36:49 EST 2006 | MikeF
If you know you have cleaned any flux residues that were under there you could consider a bead of an electronic grade RTV, such as RTV3145. If you trap any uncleaned residues under there you could have long term reliability problems. But, like Dave
Electronics Forum | Wed Jan 04 05:39:29 EST 2006 | Rob
I can't see how prompt washing of the boards could cause a problem in X7R but not in Y5V or NPO. Yes, if you dropped a board into the wash straight out of the oven without letting it cool down then it's not going to like it, but surely no-one does t
Electronics Forum | Wed Jan 04 13:47:11 EST 2006 | russ
To answer your question it was mentioned that allowing the boards to cool slightly between reflow and wash may help this case to eliminate thermal shock from immediately going into colder water straight out of the oven with no cooling. In looking at
Electronics Forum | Wed Jan 04 12:48:34 EST 2006 | pjc
In-Circuit Test is the best method for ensuring solder joint connections. It is a much more reliable than AOI. An ICT machine can ensure solder connections are made for array package devices such as BGA, PGA, etc... AOI is best for component I.D.- is
Electronics Forum | Fri Jan 06 10:49:03 EST 2006 | PWH
We had a bad situation with solvent wipe. One of the solvent supply lines cracked and the solvent got on a cluster of air lines. The air line material reacted poorly and we blew what seemed like one airline per day for a couple weeks. I had to cut
Electronics Forum | Thu Jan 05 20:34:32 EST 2006 | davef
We agree. It sounds like your tester is possessed. If it starts vomiting pea soup, throw it away. Otherwise: * Follow Pete's suggestion by calling Alphametals [or whatever they call themselves nowadays] * Contact analytical laboratories and ask th
Electronics Forum | Wed Jan 11 13:08:19 EST 2006 | GS
About SACX307 for wave you can read at post: http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=38727 As I have heard, in Europe, Germany in particular, several assemblers are using SN100C for wave (also HASL) with success since years ago.
Electronics Forum | Tue Jan 17 10:53:05 EST 2006 | sarar
Hi Steve, I work for an analytical laboratory that specializes in ionic cleanliness, and we have found through the variety of cleanliness issues we encounter that the Envirosense cleaning chemistries are very effective also, so you might want to add